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ISL95833 - Dual 2+1 PWM Controller

General Description

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Key Features

  • Both outputs support either DCR current sensing with a single NTC thermistor for DCR temperature compensation, or more precise resistor current sensing if desired. Both outputs come with remote voltage sense, programmable VBOOT voltage, IMAX, and switching frequency, adjustable overcurrent protection and separate Power-Good signals. Features.
  • Serial data bus.
  • Dual outputs: - Configurable 3-, 2- or 1-phase for the 1st output using two integrated gate drivers - 2nd output using.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Dual 3+1 PWM Controller with Current Monitor for IMVP-7/VR12™ CPUs ISL95839 The ISL95839 Pulse Width Modulation (PWM) controller IC provides a complete solution for IMVP-7/VR12™ compliant microprocessor and graphic processor core power supplies. It provides the control and protection for two Voltage Regulators (VRs). The first VR, typical for Vcore, incorporates 2 integrated drivers and can operate in 3-, 2- or 1-phase configurations. The second VR, typical for Graphics, incorporates 1 integrated driver. The two VRs share a serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two-chip approach. Both VRs utilize Intersil’s Robust Ripple Regulator R3 Technology™.